Schuylkill River from Belmont Ave. to Greenland Dr. (at Strawberry Mansion Bridge); to Ford Rd. at Monument Rd.; then air line to Penn-Central R.R. at Woodbine Ave.; to Overbrook Ave.; to 52nd St.; to City Ave.; to 57th St. (extended to N. Highland Ave.); to Penn-Central R.R.; to Bowman Ave.; to Levering Mill Rd.; to Manayunk Rd.; to Conshohocken State Rd.; to Rock Hill Rd.; to Belmont Ave.; to Schuylkill River.